CN216978900U

CN216978900U - Testing device

Info

Publication number: CN216978900U
Application number: CN202221325685.3U
Authority: CN
Inventors: 王培�; 李威威; 赵予生; 王李平
Original assignee: Southern University of Science and Technology
Current assignee: Southern University of Science and Technology
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-07-15
Anticipated expiration: 2032-05-31

Abstract

The utility model provides a testing device, and belongs to the technical field of cavity testing. The testing device comprises a supporting pipe, a heat insulation component, a hollow medium block, a first conductive part, a second conductive part, a first connecting part and a second connecting part; the heat insulation assembly comprises a first heat insulation ring, a second heat insulation ring and a first heat insulation pipe, the first heat insulation ring and the second heat insulation ring are respectively arranged at two ends of the first heat insulation pipe, and the first heat insulation pipe is sleeved on the hollow medium block; the first connecting part and the second connecting part are respectively arranged at two ends of the hollow dielectric block, the first heat-insulating ring is sleeved on the first connecting part, and the second heat-insulating ring is sleeved on the second connecting part; the supporting tube is sleeved on the first heat-preservation tube, and the first conductive part and the second conductive part are respectively arranged at two ends of the supporting tube. According to the testing device provided by the utility model, the first heat-preserving pipe is sleeved on the hollow medium block, so that the heat loss of the hollow medium block in the temperature rising process is reduced, the temperature rising efficiency of the hollow medium block is improved, and the upper limit of the temperature of the device is improved.

Description

Testing device

Technical Field

The utility model relates to the technical field of cavity testing, in particular to a testing device.

Background

Under the condition of a certain sample volume, extreme high pressure and high temperature conditions are achieved, and the sample cavity is heated to a high temperature of more than 4000K, which is very important for researching refractory compounds and the growth of single crystals under high pressure.

The pressure that present one-level big cavity produced generally is 5GPa, and the temperature is generally less than 3000 ℃, and in the experimentation, the intensification of device is efficient moreover, and the heat scatters and disappears very fast, can't reach higher temperature, has not only influenced the temperature upper limit of cavity, has restricted the development of novel compound superhard materials moreover.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a testing apparatus to overcome the deficiencies in the prior art.

The utility model provides the following technical scheme: a testing device comprises a supporting tube, a heat insulation component, a hollow medium block, a first conductive part, a second conductive part, a first connecting part and a second connecting part;

the heat insulation assembly comprises a first heat insulation ring, a second heat insulation ring and a first heat insulation pipe, the first heat insulation ring and the second heat insulation ring are respectively arranged at two ends of the first heat insulation pipe, and the first heat insulation pipe is sleeved on the hollow medium block;

the first connecting part and the second connecting part are respectively arranged at two ends of the hollow medium block, the first heat-insulating ring is sleeved on the first connecting part, and the second heat-insulating ring is sleeved on the second connecting part;

the supporting tube is sleeved on the first heat-insulating tube, and the first conductive part and the second conductive part are respectively arranged at two ends of the supporting tube.

In some embodiments of the utility model, the first conductive portion comprises a first conductive sheet and a first conductive ring;

the first conductive ring is arranged on one side, far away from the second connecting part, of the first connecting part, and the first conductive ring is arranged between the first conductive sheet and the first connecting part.

Furthermore, the orthographic projection of the first conducting strip along the axis direction of the supporting pipe completely covers the first connecting part and the heat preservation assembly.

Further, the second conductive part comprises a second conductive sheet and a second conductive ring;

the second conductive ring is arranged on one side, away from the first connecting part, of the first connecting part, and the second conductive ring is arranged between the second conductive sheet and the second connecting part.

Further, the orthographic projection of the second conducting strip along the axial direction of the supporting tube completely covers the second connecting part and the heat insulation component.

Further, the first connecting portion comprises a first connecting column and a first connecting pipe, and the first connecting pipe is sleeved on the first connecting column;

one end of the first connecting part is connected with the hollow dielectric block, and the other end of the first connecting part is connected with the first conductive part.

Further, the second connecting part comprises a second connecting column and a second connecting pipe, and the second connecting column is sleeved with the second connecting pipe;

one end of the second connecting part is connected with the hollow dielectric block, and the other end of the second connecting part is connected with the second conductive part.

Further, the hollow medium block comprises a first heat preservation sheet, a second heat preservation sheet and a second heat preservation pipe;

the first heat preservation sheet and the second heat preservation sheet are respectively arranged at two ends of the second heat preservation pipe, so that a containing cavity is formed in the second heat preservation pipe.

Further, the supporting pipe and the second heat preservation pipe are coaxially arranged.

Furthermore, sealing layers are respectively arranged at two ends of the supporting tube.

The embodiment of the utility model has the following advantages: set up first heating portion and second heating portion respectively through the both ends at the hollow medium piece, locate first heating portion with first heating ring cover simultaneously, second heating portion is located to second heating ring cover, in order to reduce first heating portion and second heating portion and scatter and disappear in the heat to the heating process of hollow medium piece, thereby the heating efficiency of first heating portion and second heating portion to the hollow medium piece has been improved, locate hollow medium piece with first heating pipe cover simultaneously, in order to reduce the heat of hollow medium piece in the intensification process and scatter and disappear, in order to improve the intensification efficiency of hollow medium piece, thereby hoisting device's temperature upper limit.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible and comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram illustrating a perspective view of a testing apparatus according to some embodiments of the present invention;

FIG. 2 shows a cross-sectional view of section A-A of FIG. 1;

FIG. 3 shows a cross-sectional view of section B-B of FIG. 1;

fig. 4 is a schematic diagram illustrating another perspective structure of a testing apparatus according to some embodiments of the present invention.

Description of the main element symbols:

100-supporting a tube; 200-a heat preservation component; 210-a first insulating ring; 220-a second heat preservation ring; 230-a first heat preservation pipe; 300-hollow dielectric block; 310-a first heat-preserving sheet; 320-a second heat preservation sheet; 330-a second insulating pipe; 400-a first conductive portion; 410-a first conductive sheet; 420-a first conductive ring; 500-a second conductive portion; 510-a second conductive sheet; 520-a second conductive loop; 600-a first connection; 610-a first connecting post; 620-a first connection tube; 700-a second connection; 710-a second connecting column; 720-a second connecting tube; 800-an accommodation cavity; 900-sealing layer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, some embodiments of the present invention provide a testing apparatus, which is mainly used to increase the pressure of a large cavity in a composite superhard material. The testing device comprises a supporting pipe 100, a heat preservation component 200, a hollow medium block 300, a first conductive part 400, a second conductive part 500, a first connecting part 600 and a second connecting part 700.

It can be understood that the supporting tube 100 plays a role of supporting and transmitting pressure in the testing device, and the heat insulation component 200 provides heat insulation for the testing device, so as to improve the stability of temperature in the testing device, and thus improve the accuracy of test data.

It should be noted that the hollow dielectric block 300 is a hollow block structure, in some embodiments of the present invention, the hollow dielectric block 300 is a hollow cubic structure, and a cubic pre-pressing material may be placed in the hollow dielectric block 300 to perform a pre-pressing experiment.

Specifically, the material of the hollow dielectric block 300 may be any one of boron nitride, NaCl, or MgO, and may be specifically set according to actual conditions, so as to form a heat preservation effect on the pre-pressed material placed in the cavity of the dielectric block through the hollow dielectric block 300, thereby improving the accuracy of experimental data.

The heat insulation assembly 200 comprises a first heat insulation ring 210, a second heat insulation ring 220 and a first heat insulation pipe 230, wherein the first heat insulation ring 210 and the second heat insulation ring 220 are respectively arranged at two ends of the first heat insulation pipe 230. In some embodiments of the present invention, the first thermal insulation pipe 230 is sleeved on the first thermal insulation ring 210 and the second thermal insulation ring 220, respectively. It will be appreciated that the outer wall of the first insulating ring 210 and the outer wall of the second insulating ring 220 respectively abut against the inner wall of the first insulating pipe 230.

Meanwhile, the first heat preservation pipe 230 is sleeved on the hollow medium block 300. It is understood that the hollow dielectric block 300 is disposed between the first insulating ring 210 and the second insulating ring 220.

Optionally, the first thermal insulation ring 210 and the second thermal insulation ring 220 are respectively disposed at two ends of the first thermal insulation pipe 230, and an outer diameter of the first thermal insulation ring 210, an outer diameter of the second thermal insulation ring 220 and an outer diameter of the first thermal insulation pipe 230 are equal.

It should be noted that the first heat retaining ring 210, the second heat retaining ring 220, and the first heat retaining pipe 230 are coaxially disposed.

The first connection part 600 and the second connection part 700 are respectively provided at both ends of the hollow dielectric block 300 to heat the hollow dielectric block 300 through the first connection part 600 and the second connection part 700.

Meanwhile, the first heat-insulating ring 210 is sleeved on the first connecting portion 600, and the second heat-insulating ring 220 is sleeved on the second connecting portion 700, so that the first connecting portion 600 is insulated by the first heat-insulating ring 210, and heat loss of the first connecting portion 600 in the process of heating the hollow dielectric block 300 is reduced.

The second connecting part 700 is insulated by the second insulating ring 220, so that heat loss of the second connecting part 700 in the heating process of the hollow medium block 300 is reduced, the heating efficiency of the first connecting part 600 and the second connecting part 700 on the hollow medium block 300 is improved, heat loss of the hollow medium block 300 in the heating process is reduced, energy is saved, and the upper temperature limit of the device is improved.

The first insulating tube 230 is fixed and supported by the supporting tube 100 by sleeving the supporting tube 100 on the first insulating tube 230. Meanwhile, the first conductive part 400 and the second conductive part 500 are respectively disposed at both ends of the support pipe 100.

Specifically, the first conductive part 400 is disposed on a side of the first connecting part 600 away from the hollow dielectric block 300, and the first conductive part 400 abuts against the first connecting part 600.

Meanwhile, the second conductive part 500 is disposed at a side of the second connecting part 700 away from the hollow dielectric block 300, and the second conductive part 500 is abutted against the second connecting part 700. The first and second

conductive parts

400 and 500 are connected to an external power source, respectively, to heat the first and

second connection parts

600 and 700, and simultaneously, the hollow dielectric block 300 is heated by the first and

second connection parts

600 and 700 to increase the temperature of the hollow dielectric block 300.

As shown in fig. 2, in some embodiments of the present invention, the first conductive part 400 includes a first conductive sheet 410 and a first conductive ring 420, the first conductive sheet 410 and the first conductive ring 420 are coaxially disposed, and the diameter of the first conductive sheet 410 is equal to the outer diameter of the first conductive ring 420.

Meanwhile, the first conductive ring 420 is disposed at a side of the first connection portion 600 away from the second connection portion 700, and the first conductive ring 420 is disposed between the first conductive sheet 410 and the first connection portion 600.

It should be noted that the first conductive ring 420 is any one of a conductive copper ring and a conductive aluminum ring, and may be specifically set according to actual situations.

As shown in fig. 2, in some embodiments of the present invention, the second conductive part 500 includes a second conductive sheet 510 and a second conductive ring 520, the second conductive sheet 510 and the second conductive ring 520 are coaxially disposed, and a diameter of the second conductive sheet 510 is equal to an outer diameter of the second conductive ring 520.

Meanwhile, the second conductive ring 520 is disposed at a side of the first connection portion 600 away from the first connection portion 600, and the second conductive ring 520 is disposed between the second conductive sheet 510 and the second connection portion 700.

It should be noted that the second conductive ring 520 is any one of a conductive copper ring and a conductive aluminum ring, and can be specifically set according to actual situations.

Specifically, the first conductive sheet 410 and the second conductive sheet 510 are both molybdenum sheets, and the diameter of the first conductive sheet 410 is equal to the diameter of the second conductive sheet 510.

It should be noted that after rolling with a deformation of more than 60%, the density of the molybdenum sheet is basically close to the theoretical density of molybdenum, so that the molybdenum sheet has high strength, uniform internal structure and excellent high-temperature creep resistance, and is widely applied to the production of products such as a reflecting screen and a cover plate in a sapphire crystal growth furnace, a reflecting screen, a heating belt and a connecting piece in a vacuum furnace, a sputtering target material for plasma coating, a high-temperature resistant boat and the like.

As shown in fig. 1 and 2, in some embodiments of the present invention, the first connection part 600 includes a first connection column 610 and a first connection pipe 620, and the first connection pipe 620 is sleeved on the first connection column 610. It is understood that the first connection tube 620 and the first connection post 610 are coaxially disposed.

Specifically, the first connection pipe 620 may be any one of a lanthanum chromate pipe and a graphite pipe. The first connection column 610 may be any one of a lanthanum chromate column, a graphite doped column, or a graphite column. To improve the heat conduction efficiency of the first connection pipe 620.

One end of the first connecting portion 600 is connected to the hollow dielectric block 300, and the other end of the first connecting portion 600 is connected to the first conductive portion 400. The first connection portion 600 and the hollow dielectric block 300 may be connected by bonding, or the first connection portion 600 and the first conductive portion 400 may be connected by bonding.

Specifically, one sides of the first connection pipes 620 and the first connection pillars 610 close to the hollow dielectric block 300 are abutted against the hollow dielectric block 300, so that heat is transferred to the hollow dielectric block 300 through the first connection pipes 620 and the first connection pillars 610.

As shown in fig. 2, in some embodiments of the present invention, the second connecting portion 700 includes a second connecting column 710 and a second connecting pipe 720, and the second connecting pipe 720 is sleeved on the second connecting column 710. It can be understood that the second connection pipe 720 and the second connection column 710 are coaxially disposed.

Specifically, the second connection pipe 720 may be any one of a lanthanum chromate pipe and a graphite pipe. The second connection column 710 may be any one of a lanthanum chromate column, a graphite doped column, or a graphite column. To improve the heat conduction efficiency of the second connection pipe 720.

One end of the second connecting portion 700 is connected to the hollow dielectric block 300, and the other end of the second connecting portion 700 is connected to the second conductive portion 500. The second connection part 700 and the hollow dielectric block 300 may be connected by adhesion, and the second connection part 700 and the second conductive part 500 may be connected by adhesion.

Specifically, one sides of the second connection pipe 720 and the second connection column 710, which are close to the hollow dielectric block 300, are in contact with the hollow dielectric block 300, so that heat is transferred to the hollow dielectric block 300 through the second connection pipe 720 and the second connection column 710.

In some embodiments of the present invention, the first connection pipe 620, the hollow medium block 300 and the second connection pipe 720 are coaxially disposed.

As shown in fig. 2 and 3, in some embodiments of the present invention, the hollow dielectric block 300 includes a first insulating sheet 310, a second insulating sheet 320, and a second insulating pipe 330, and the first insulating sheet 310, the second insulating sheet 320, and the second insulating pipe 330 are coaxially disposed.

Meanwhile, the first insulation sheet 310 and the second insulation sheet 320 are respectively disposed at both ends of the second insulation pipe 330 to form a receiving cavity 800 inside the second insulation pipe 330.

In some embodiments of the present invention, the second insulating tube 330 is respectively sleeved on the first insulating sheet 310 and the second insulating sheet 320, that is, the side wall of the first insulating sheet 310 and the side wall of the second insulating sheet 320 respectively contact with the inner wall of the second insulating tube 330.

Optionally, the first heat-insulating sheet 310 and the second heat-insulating sheet 320 are stacked at two ends of the second heat-insulating pipe 330, respectively, that is, the outer diameters of the first heat-insulating sheet 310 and the second heat-insulating sheet 320 are equal to the outer diameter of the second heat-insulating pipe 330.

The first insulating sheet 310, the second insulating sheet 320 and the second insulating pipe 330 may be connected by any one of adhesion, clamping, and screw connection.

As shown in fig. 2 and 3, in some embodiments of the present invention, an orthographic projection of the first conductive sheet 410 along the axial direction of the support tube 100 completely covers the first connection portion 600 and the heat insulating member 200, and the contact area between the first conductive sheet 410 and the first connection portion 600 is increased to improve the heating efficiency of the first connection portion 600 on the hollow dielectric block 300.

Meanwhile, the orthographic projection of the second conductive sheet 510 along the axial direction of the support tube 100 completely covers the second connecting part 700 and the heat insulation component 200, and the contact area between the second conductive sheet 510 and the second connecting part 700 is increased, so that the heating efficiency of the second connecting part 700 on the hollow medium block 300 is improved.

As shown in fig. 1 to 4, in some embodiments of the present invention, in order to improve the stability of the test apparatus during the test, sealing layers 900 are respectively disposed at both ends of the support tube 100, an orthogonal projection of the sealing layers 900 in the axial direction of the support tube 100 completely covers the support tube 100, and both ends of the support tube 100 are sealed by the sealing layers 900.

The sealing layer 900 is a pyrophyllite sealing layer 900, so that the sealing effect of the testing device is improved through the sealing layer 900.

Specifically, in some embodiments of the present invention, the first conductive ring 420 is disposed through the sealing layer 900 on a side thereof adjacent to the sealing layer 900 to be connected to an external power source through the first conductive ring 420, and the second conductive ring 520 is disposed through the sealing layer 900 on a side thereof adjacent to the sealing layer 900 to be connected to the external power source through the second conductive ring 520.

The pyrophyllite contains silicon dioxide and aluminum oxide, is not melted when heated, and is a raw material for producing an aluminum silicate refractory. Due to the wide range of refractory materials, some other characteristic minerals need to be added into the pyrophyllite mineral material to form a new refractory material; if mullite mineral material is added, the product can improve the impact strength, density, heat resistance, refractoriness, corrosion resistance and slag resistance of the product; zircon minerals are added to the refractory material, which has good durability and strong corrosion resistance to the action of metal and slag.

In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A testing device is characterized by comprising a supporting tube, a heat insulation component, a hollow medium block, a first conductive part, a second conductive part, a first connecting part and a second connecting part;

2. The testing device of claim 1, wherein the first conductive portion comprises a first conductive sheet and a first conductive ring;

3. The testing device of claim 2, wherein an orthographic projection of the first conductive sheet along the axis of the support tube completely covers the first connection portion and the heat-insulating assembly.

4. The test apparatus of claim 1, wherein the second conductive portion comprises a second conductive sheet and a second conductive ring;

the second conductive ring is arranged on one side, far away from the first connecting part, of the first connecting part, and the second conductive ring is arranged between the second conductive sheet and the second connecting part.

5. The testing device of claim 4, wherein an orthographic projection of the second conductive sheet along the axis of the support tube completely covers the second connecting portion and the heat insulating member.

6. The testing device of claim 1, wherein the first connection portion comprises a first connection post and a first connection tube, the first connection tube being sleeved on the first connection post;

7. The testing device of claim 1, wherein the second connecting portion comprises a second connecting column and a second connecting pipe, and the second connecting pipe is sleeved on the second connecting column;

8. The test device of claim 1, wherein the hollow dielectric block comprises a first insulating sheet, a second insulating sheet, and a second insulating tube;

9. The testing device of claim 8, wherein the support tube is disposed coaxially with the second insulated tube.

10. The test device of claim 1, wherein the support tube is provided with a sealing layer at each end.